xilinx: versal: Implement device related PM APIs

Implement below device related PM APIs:
  - Request device
  - Release device
  - Set requirement
  - Get device status

Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I9d84b9ee1be3ee6c5f27a4d6dc324113fc1acb68
3 files changed